Malicious PDF — malware analysis report

Static analysis result for SHA-256 6259ba2d89c79278…

MALICIOUS

PDF

72.3 KB Created: 2021-02-05 10:26:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: fd7455426ddc94f65f686d68af2c9970 SHA-1: ac4d90b2871a1228af1be714f24e48bf77fc7475 SHA-256: 6259ba2d89c792785e4c0073bac2416f28df17f94a837fe507fd3454974ae014
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a website disguised as a meeting agenda template, likely to phish for information or deliver a payload. The ML classifier and ClamAV detection strongly indicate malicious intent. No scripts were extracted, but the presence of an external URI is a primary indicator of a phishing or download attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jottigo.ru/wb?keyword=meeting%20agenda%20template%20uk PDF link annotation
    • https://cdn.sqhk.co/goberirud/d9gd9sw/33433217211.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417408/normal_5ff67a6470945.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutorixo/jehfsKs/83925873602.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/faiftia/56485940297.pdfIn PDF document text
    • https://cdn.sqhk.co/refevebux/igijmgj/15133018322.pdfIn PDF document text
    • https://cdn.sqhk.co/baresupujar/icVS4yL/drum_session_game.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/hcidic3/hero_dino_battle_ninja_ranger_steel_samurai_retrospective.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417805/normal_5fff5cb723ccb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gogunabones/46079189920.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/apk_facebook_lite_versi_terbaru_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/kexufozowofozu.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/jewajisogakep.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/leave_letter_for_job_format.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/zesep.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/zonajenikurazuvunati.pdfIn PDF document text
    • https://s3.amazonaws.com/pegek/18202150.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/lominasiziniledegefomowuv.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/joluxanunefejekuse.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3FF 4844 bytes
SHA-256: e58170540ae5d26769e4f38186591f6f1b40175e20465216378ba2de88c370a8
font_01_sfnt_off0000e468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE468 9816 bytes
SHA-256: 639b25634135b43ae47149cf2eabbdaaea4032cf1a65a99659dc778557cc1b9d
font_02_sfnt_off0001061f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1061F 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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